A fresh install of Ubuntu 21.10, and GNOME shell is not a login option!
When I start Ubuntu on other machines, the options "GNOME", "GNOME Classic" and "GNOME on Xorg" are listed when logging in (cog wheel, bottom right). But not on this. All I find here is "Ubuntu" and "Ubuntu on Xorg". Gnome shell is indeed installed, which has been sufficient before:
sudo apt-get install gnome-shell
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
gnome-shell is already the newest version (40.5-1ubuntu2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
I'd like to use GNOME shell – what am I missing?